feat(desktop): native download and working context menu actions

desktop-client/src/App.vue

@@ -270,6 +270,17 @@ function showToast(message: string, type = "info") {
   }, 2500);
 }
 
+function prependTransferTask(task: { id: string; name: string; speed: string; progress: number; status: string }) {
+  transferTasks.value = [task, ...transferTasks.value.slice(0, 49)];
+}
+
+function updateTransferTask(
+  id: string,
+  patch: Partial<{ name: string; speed: string; progress: number; status: string }>,
+) {
+  transferTasks.value = transferTasks.value.map((task) => (task.id === id ? { ...task, ...patch } : task));
+}
+
 async function invokeBridge(command: string, payload: Record<string, any>) {
   try {
     return await invoke<BridgeResponse>(command, payload);
@@ -328,6 +339,20 @@ async function loadShares(silent = false) {
   if (!silent) sharesLoading.value = false;
 }
 
+async function getSignedUrlForItem(item: FileItem, mode: "download" | "preview") {
+  const targetPath = buildItemPath(item);
+  const response = await invokeBridge("api_get_download_url", {
+    baseUrl: appConfig.baseUrl,
+    path: targetPath,
+    mode,
+  });
+  if (response.ok && response.data?.success && response.data?.downloadUrl) {
+    return String(response.data.downloadUrl);
+  }
+  showToast(response.data?.message || "获取链接失败", "error");
+  return "";
+}
+
 async function createShareForItem(current: FileItem) {
   const response = await invokeBridge("api_create_share", {
     baseUrl: appConfig.baseUrl,
@@ -571,28 +596,32 @@ async function downloadSelected(target?: FileItem | null) {
     showToast("当前仅支持下载文件", "info");
     return;
   }
-  const targetPath = buildItemPath(current);
-  const response = await invokeBridge("api_get_download_url", {
-    baseUrl: appConfig.baseUrl,
-    path: targetPath,
-    mode: "download",
+  const signedUrl = await getSignedUrlForItem(current, "download");
+  if (!signedUrl) return;
+
+  const taskId = `D-${Date.now()}`;
+  prependTransferTask({
+    id: taskId,
+    name: current.displayName || current.name,
+    speed: "原生下载",
+    progress: 1,
+    status: "downloading",
   });
-  if (response.ok && response.data?.success && response.data?.downloadUrl) {
-    await openUrl(response.data.downloadUrl);
-    showToast("已调用系统浏览器开始下载", "success");
-    transferTasks.value = [
-      {
-        id: `D-${Date.now()}`,
-        name: current.displayName || current.name,
-        speed: "直连",
-        progress: 100,
-        status: "dispatched",
-      },
-      ...transferTasks.value.slice(0, 29),
-    ];
+
+  const nativeResponse = await invokeBridge("api_native_download", {
+    url: signedUrl,
+    fileName: current.displayName || current.name,
+  });
+
+  if (nativeResponse.ok && nativeResponse.data?.success) {
+    updateTransferTask(taskId, { speed: "-", progress: 100, status: "done" });
+    const savedPath = nativeResponse.data?.savePath ? `\n${nativeResponse.data.savePath}` : "";
+    showToast(`下载完成${savedPath}`, "success");
     return;
   }
-  showToast(response.data?.message || "获取下载链接失败", "error");
+
+  updateTransferTask(taskId, { speed: "-", progress: 0, status: "failed" });
+  showToast(nativeResponse.data?.message || "原生下载失败", "error");
 }
 
 function selectFile(item: FileItem) {
@@ -604,6 +633,11 @@ async function openItem(item: FileItem) {
   if (item.isDirectory || item.type === "directory") {
     const nextPath = buildItemPath(item);
     await loadFiles(nextPath);
+    return;
+  }
+  const previewUrl = await getSignedUrlForItem(item, "preview");
+  if (previewUrl) {
+    await openUrl(previewUrl);
   }
 }
 
@@ -921,7 +955,7 @@ onBeforeUnmount(() => {
       @click.stop
     >
       <button class="context-item" @click="executeContextAction('open')">
-        {{ contextMenu.item.isDirectory ? "打开文件夹" : "打开/下载" }}
+        {{ contextMenu.item.isDirectory ? "打开文件夹" : "打开预览" }}
       </button>
       <button v-if="!contextMenu.item.isDirectory" class="context-item" @click="executeContextAction('download')">下载文件</button>
       <button class="context-item" @click="executeContextAction('rename')">重命名</button>